There are 100 US Senators and 435 voting US Representatives (plus 6 non-voting Representatives) for a total of 535 Congresspeople (541 when you include non-voters).
The US Congress consists of the Senate and the House of Representatives. The members of Congress total 535, being: 100 Senators 435 Members of the House of Representatives 1 Resident Commissioner,...
There are 100 Senators, two to represent the interests of each State. The real question should be, "Why do we have 435 Congressmen in the House of Representatives?" I'd explain why, but you didn't...